CN213689270U

CN213689270U - Cleaning-free lead-free solder flux physical and chemical characteristic detection device

Info

Publication number: CN213689270U
Application number: CN202022588168.2U
Authority: CN
Inventors: 谌荣涛
Original assignee: Wuhan North Electronic Technology Co ltd
Current assignee: Wuhan North Electronic Technology Co ltd
Priority date: 2020-11-10
Filing date: 2020-11-10
Publication date: 2021-07-13
Anticipated expiration: 2030-11-10

Abstract

The utility model provides a cleaning-free lead-free solder scaling powder physical and chemical characteristic detection device, which relates to the technical field of detection devices and comprises a workbench, a suction device, a drying device and a moving device, wherein the side surface of the workbench is provided with a bearing side plate, the top of the bearing side plate is provided with a bearing top plate, the top surface of the bearing top plate is provided with a cavity, the suction device comprises a first XY axis moving platform, the bottom surface of the first XY axis moving platform is provided with a telescopic rod, the bottom of the telescopic rod is fixedly provided with a cylinder, the movable end of the cylinder is provided with a sealing piston, the outside of the sealing piston is provided with an injection sleeve, the surface of the workbench is provided with a weighing balance, the moving device is positioned on the front surface of the bearing side plate, the suction device is adopted to drive the injection sleeve and the sealing piston to suck the scaling powder through the, thereby ensuring that the quality of the soldering flux is within the range specified by the national standard and improving the physical property and quality of the soldering flux.

Description

Cleaning-free lead-free solder flux physical and chemical characteristic detection device

Technical Field

The utility model relates to a detection device technical field especially relates to a cleaning-free leadless solder scaling powder physical and chemical characteristics detection device.

Background

The scaling powder is an important auxiliary material in the field of photovoltaic and electronic production, can remove surface oxides of materials, reduce the surface tension of molten solder and improve the wettability, and consists of a solvent, an active agent, a surfactant, a film-forming agent and the like, the current index for measuring the concentration of the scaling powder is the solid content, namely the mass ratio of the content of non-volatile matters, the scaling powder is a mixture which takes rosin as a main component, can help and promote the welding process in the welding process, and has chemical substances with the functions of protecting and preventing oxidation reaction, the scaling powder can be divided into solid, liquid and gas, the cleaning-free scaling powder enables the surface of a PCB after welding to reach the specified quality level without cleaning, the traditional scaling powder has higher solid content (20-40%), medium solid content (10-15%) and lower solid content (5-10%), the PCB welded by the scaling powders leaves more or less residues, the solid content of the no-clean scaling powder is required to be lower than 2%, and rosin cannot be contained, so that the welded board is basically free of residues, the traditional scaling powder can wrap part of harmful substances after welding due to high solid content to isolate the contact with air to form an insulating protective layer, and the no-clean scaling powder cannot form the insulating protective layer due to extremely low solid content, so that serious adverse effects such as corrosion and electric leakage can be caused if a small amount of harmful components remain on the board. Therefore, the no-clean flux is not allowed to contain a halogen component.

Because solvents such as isopropanol, ethanol and the like in the no-clean soldering flux are volatile, the solvents in the soldering flux are reduced, the content ratio of the soldering flux exceeds 2% of the standard, the use of the soldering flux is not facilitated, and the problems that the detection data is inaccurate, the detection of physicochemical properties is incomplete and the like exist in the existing no-clean soldering flux for lead-free solder detection.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a cleaning-free lead-free solder flux physical and chemical characteristic detection device.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a cleaning-free leadless solder scaling powder physicochemical characteristic detection device, includes workstation, suction means, drying device and mobile device, the workstation side is equipped with the bearing curb plate, bearing curb plate top is equipped with the bearing roof, the cavity has been seted up to bearing roof top surface, suction means includes first XY axle moving platform, first XY axle moving platform's expansion end and bearing roof inner wall fixed connection all around, the fixed telescopic link that is equipped with in first XY axle moving platform bottom surface, the fixed cylinder that is equipped with in fixed telescopic link bottom, the expansion end of cylinder is fixed and is equipped with sealed piston, the sealed piston outside is equipped with the injection sleeve, and sealed piston outer wall and injection sleeve inner wall counterbalance are sealed, the workstation surface is equipped with weighing balance, mobile device is located the bearing curb plate openly.

Preferably, the moving device comprises a second XY-axis moving platform, a cavity is formed in the front face of the bearing side plate, the end part of the movable end of the second XY-axis moving platform is fixedly connected with the inner wall of the bearing side plate, a mechanical support arm is arranged in the center of the front face of the second XY-axis moving platform, mechanical clamping jaws are hinged to two sides of the mechanical support arm, and anti-slip strips are arranged on the surfaces of the side walls, opposite to the mechanical clamping jaws, of the two sides of the mechanical support arm.

Preferably, drying device includes drying tank and stoving flabellum, the embedding workstation top surface in the drying tank, the even array of drying tank four walls is equipped with the stoving flabellum, the even array of drying tank bottom surface is fixed and is equipped with the heat conduction lattice.

Preferably, the corrosion detection device includes objective table and copper lens, the workstation surface is equipped with the objective table, the objective groove has been seted up to the even array in objective table surface, the objective groove bottom surface all is equipped with the copper lens, and the copper lens passes through self-adhesive and objective groove bottom surface fixed connection, and the copper lens adopts the thin copper film of vacuum vapor deposition coating single face to form on being the glass material.

Preferably, a liquid storage tank is arranged on one side of the surface of the workbench, a waste material tank is arranged on one side of the liquid storage tank, and a weighing barrel is arranged at the top of the weighing balance.

Preferably, the surface of the workbench is sequentially provided with a liquid storage tank, a weighing balance, a drying device, a waste material tank and a corrosion detection device from one side of the liquid storage tank to the other side of the workbench.

Advantageous effects

The utility model discloses in, adopt suction means to pass through the absorption of cylinder drive injection sleeve and sealed piston to the scaling powder, through weighing balance and drying device's use to calculate the solid content to the scaling powder and detect, carry out the joining adjustment of scaling powder solvent, thereby ensure the quality of scaling powder at the within range of national standard regulation, improve the physical property quality of scaling powder.

The utility model discloses in, adopt suction means to absorb the scaling powder, carry out the bronze mirror corrosion test through corrosion detection device, test the short-term corrosivity of scaling powder to carry out the corrosivity test of scaling powder, guarantee the chemical property quality of scaling powder.

Drawings

FIG. 1 is a schematic perspective view of a cleaning-free lead-free solder flux physical and chemical characteristic detection device;

FIG. 2 is an enlarged view taken at 1-A;

FIG. 3 is a front cross-sectional view of a no-clean lead-free solder flux physicochemical characteristic detection device;

fig. 4 is a side cross-sectional view of a no-clean lead-free solder flux physicochemical characteristic detection device.

Illustration of the drawings:

1. a work table; 2. a liquid storage tank; 3. a canister; 4. weighing a balance; 5. weighing a barrel; 6. a load-bearing side plate; 7. a load bearing top plate; 8. a suction device; 801. a first XY axis moving stage; 802. a telescopic rod; 803. a cylinder; 804. a sealing piston; 805. an injection sleeve; 9. a mobile device; 901. a second XY axis moving stage; 902. a mechanical arm; 903. a mechanical jaw; 10. a corrosion detection device; 1001. an object stage; 1002. a carrying groove; 1003. a copper lens; 11. a drying device; 1101. a drying tank; 1102. drying the fan blades; 1103. a thermally conductive lattice.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand, the present invention will be further explained below with reference to the following embodiments and the accompanying drawings, but the following embodiments are only the preferred embodiments of the present invention, and not all embodiments are included. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention.

Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

The specific embodiment is as follows:

referring to fig. 1-4, a cleaning-free lead-free solder flux physicochemical characteristic detection device comprises a workbench 1, a suction device 8, a drying device 11 and a moving device 9, wherein a bearing side plate 6 is arranged on the side surface of the workbench 1, a bearing top plate 7 is arranged on the top of the bearing side plate 6, a cavity is arranged on the top surface of the bearing top plate 7, the suction device 8 comprises a first XY axis moving platform 801, the movable end of the first XY axis moving platform 801 is fixedly connected with the peripheral inner wall of the bearing top plate 7, a telescopic rod 802 is fixedly arranged on the bottom surface of the first XY axis moving platform 801, a cylinder 803 is fixedly arranged at the bottom of the fixed telescopic rod 802, a sealing piston 804 is fixedly arranged at the movable end of the cylinder 803, an injection sleeve 805 is arranged outside the sealing piston 804, the outer wall of the sealing piston 804 is abutted and sealed against the inner wall of the injection sleeve, a weighing, a liquid storage tank 2 is arranged on one side of the surface of a workbench 1, a waste material tank 3 is arranged on one side of the liquid storage tank 2, a weighing barrel 5 is arranged on the top of a weighing balance 4, in a normal non-operation state, an expansion rod 802 is in a contraction state, an air cylinder 803 is in an expansion state at a movable end, the bottom surface of a sealing piston 804 is abutted against the bottom surface of the inner wall of an injection sleeve 805, when a suction device 8 sucks soldering flux in the liquid storage tank 2, the expansion rod 802 expands to enable the bottom end of the injection sleeve 805 to be in contact with the soldering flux in the liquid storage tank 2, the sealing piston 804 is driven to move upwards through the injection sleeve 805 by contraction of the movable end of the air cylinder 803, so that the pressure in the injection sleeve 805 is reduced, the soldering flux in the liquid storage tank 2 enters the injection sleeve 805 due to pressure change, the expansion rod 802 contracts to enable the, the whole suction device 8 is driven to move, the soldering flux in the injection sleeve 805 enters a weighing barrel 5 under the pushing of a sealing piston 804 through the movement of an air cylinder 803, the soldering flux sample is weighed through a weighing balance 4, the weighing value is marked as A, the moving device 9 comprises a second XY-axis moving platform 901, the front surface of a bearing side plate 6 is provided with a cavity, the movable end part of the second XY-axis moving platform 901 is fixedly connected with the inner wall of the bearing side plate 6, the center position of the front surface of the second XY-axis moving platform 901 is provided with a mechanical support arm 902, two sides of the mechanical support arm 902 are both hinged with mechanical clamping jaws 903, the side wall surfaces opposite to the mechanical clamping jaws 903 at the two sides are provided with anti-slip strips, the weighed soldering flux sample is clamped by the mechanical clamping jaws 903 of the moving device 9, the outer wall of the weighing barrel 5 and the mechanical support arm 902 move, the second XY-axis moving platform is used for moving, so that the weighing, the drying device 11 comprises a drying groove 1101 and drying fan blades 1102, the top surface of a workbench 1 is embedded in the drying groove 1101, the drying fan blades 1102 are uniformly arrayed on the four walls of the drying groove 1101, heat conducting lattices 1103 are uniformly arrayed and fixed on the bottom surface of the drying groove 1101, the drying fan blades 1102 on the four walls of the drying groove 1101 of the drying device 11 run, a soldering flux sample in a heating symmetrical measuring barrel 5 of the heat conducting lattices 1103 is dried, the dried soldering flux sample is filled with the rest solid in a weighing tank, the weighing barrel 5 after heating and drying is moved to the surface of a weighing balance 4 through a moving device 9 for weighing, the numerical value is recorded as B, the solid mass content of the soldering flux is A/B100%, the numerical value is within 0.2%, namely the solid mass content of the soldering flux meets the standard, if the numerical value is more than 0.2%, a solvent is required to be added for dilution, an absorbing device 8 is used for driving an injection sleeve 805 and a sealing piston 804 to absorb, the use of the weighing balance 4 and the drying device 11 is used for calculating and detecting the solid content of the soldering flux and adding and adjusting the solvent of the soldering flux, thereby ensuring that the quality of the soldering flux is in the range specified by the national standard and improving the physical property quality of the soldering flux, the corrosion detection device 10 comprises an object stage 1001 and a copper lens 1003, the surface of the workbench 1 is provided with the object stage 1001, the surface of the object stage 1001 is uniformly provided with object carrying grooves 1002 in an array manner, the bottom surfaces of the object carrying grooves 1002 are all provided with the copper lens 1003, the copper lens 1003 is fixedly connected with the bottom surfaces of the object carrying grooves 1002 through self-adhesive glue, the copper lens 1003 is formed by coating a single-sided thin copper film on a glass material by adopting a vacuum evaporation method, the suction device 8 is adopted for sucking the soldering flux, the corrosion test of the copper lens is carried out through the corrosion detection device 10, the short-term corrosion performance of the soldering flux is tested, the liquid storage tank 2, the weighing balance 4, the drying device 11, the waste material tank 3 and the corrosion detection device 10 are sequentially arranged on the surface of the workbench 1 from one side of the liquid storage tank 2 to the other side of the workbench 1, and the weighed scaling powder samples are placed into the waste material tank 3 through the clamping of the moving device 9 for unified treatment.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a cleaning-free leadless solder scaling powder physics and chemistry characteristic detection device, includes workstation (1), suction means (8), drying device (11) and mobile device (9), its characterized in that: a bearing side plate (6) is arranged on the side surface of the workbench (1), a bearing top plate (7) is arranged at the top of the bearing side plate (6), the top surface of the bearing top plate (7) is provided with a cavity, the suction device (8) comprises a first XY axis moving platform (801), the movable end of the first XY-axis moving platform (801) is fixedly connected with the inner wall of the periphery of the bearing top plate (7), a telescopic rod (802) is fixedly arranged on the bottom surface of the first XY axis moving platform (801), the bottom of the fixed telescopic rod (802) is fixedly provided with a cylinder (803), the movable end of the cylinder (803) is fixedly provided with a sealing piston (804), the outside of the sealing piston (804) is provided with an injection sleeve (805), and the outer wall of the sealing piston (804) is sealed against the inner wall of the injection sleeve (805), the surface of the workbench (1) is provided with a weighing balance (4), and the moving device (9) is positioned on the front surface of the bearing side plate (6).

2. The device for detecting the physicochemical characteristic of the no-clean lead-free solder scaling powder according to claim 1, is characterized in that: the moving device (9) comprises a second XY-axis moving platform (901), a cavity is formed in the front face of the bearing side plate (6), the end part of the movable end of the second XY-axis moving platform (901) is fixedly connected with the inner wall of the bearing side plate (6), a mechanical support arm (902) is arranged in the center of the front face of the second XY-axis moving platform (901), mechanical clamping jaws (903) are hinged to two sides of the mechanical support arm (902), and anti-slip strips are arranged on the surfaces of the opposite side walls of the mechanical clamping jaws (903) on the two sides.

3. The device for detecting the physicochemical characteristic of the no-clean lead-free solder scaling powder according to claim 1, is characterized in that: drying device (11) are including drying tank (1101) and stoving flabellum (1102), embedding workstation (1) top surface in drying tank (1101), the even array in drying tank (1101) four walls is equipped with stoving flabellum (1102), the even array in drying tank (1101) bottom surface is fixed and is equipped with heat conduction lattice (1103).

4. The device for detecting the physicochemical characteristic of the no-clean lead-free solder scaling powder according to claim 1, is characterized in that: still include corrosion detection device (10), corrosion detection device (10) are including objective table (1001) and copper lens (1003), workstation (1) surface is equipped with objective table (1001), objective groove (1002) have been seted up to objective table (1001) even array in surface, objective groove (1002) bottom surface all is equipped with copper lens (1003), and copper lens (1003) pass through self-adhesive and objective groove (1002) bottom surface fixed connection, and copper lens (1003) adopt the thin copper film of vacuum vapor deposition method coating single face to form on the glass material.

5. The device for detecting the physicochemical characteristic of the no-clean lead-free solder scaling powder according to claim 1, is characterized in that: the automatic weighing device is characterized in that a liquid storage tank (2) is arranged on one side of the surface of the workbench (1), a waste material tank (3) is arranged on one side of the liquid storage tank (2), and a weighing barrel (5) is arranged at the top of the weighing balance (4).

6. A cleaning-free lead-free solder flux physicochemical characteristic detection device according to claim 5, characterized in that: the surface of the workbench (1) is sequentially provided with a liquid storage tank (2), a weighing balance (4), a drying device (11), a waste tank (3) and a corrosion detection device (10) from one side of the liquid storage tank (2) to the other side of the workbench (1).